MS51
Nov. 28, 2019
Page
20
of 491
Rev 1.00
MS51
32K
SE
RIES
TE
CHNICAL RE
F
EREN
CE MA
N
UAL
4.1.5
QFN 20-pin Package Pin Diagram
Corresponding Part Number: MS51XC0BE
QFN20
33 VSS
1
2
3
4
5
10
9
8
7
6
1
5
1
4
1
3
1
2
1
1
16
17
18
19
20
PWM3_CH1 / UART2_TXD / PWM0_CH5 / IC5 / ADC_CH6 / P0.3
PWM2_CH1 / UART2_RXD / STADC / PWM0_CH3 / IC3 / ADC_CH5 / P0.4
PWM2_CH0 / UART3_TXD / T0 / PWM0_CH2 / IC6 / ADC_CH4 / P0.5
UART0_TXD / ADC_CH3 / P0.6
UART0_RXD / ADC_CH2 / P0.7
n
R
E
S
E
T
/
P
2
.0
S
P
I0
_
M
O
S
I
/
U
A
R
T
2
_
T
X
D
/
I
N
T
0
/
O
S
C
IN
/
A
D
C
_
C
H
1
/
P
3
.0
S
P
I0
_
C
L
K
/
U
A
R
T
2
_
R
X
D
/
I
N
T
1
/
A
D
C
_
C
H
0
/
P
1
.7
V
S
S
U
A
R
T
1
_
T
X
D
/
I
2
C
0
_
S
D
A
/
I
C
E
_
D
A
T
/
P
1
.6
P1.2 / PWM0_CH0 / IC0 / UART3_TXD / PWM1_CH0
P1.3 / STADC / I2C0_SCL / ADC_CH13
P1.4 / PWM0_CH1 / I2C0_SDA / PWM0_BRAKE / ADC_CH14 / PWM1_CH1
P1.5 / PWM0_CH5 / SPI0_SS / IC7 / UART3_TXD / PWM3_CH1
V
DD
P
0
.2
/
I
C
E
_
C
L
K
/
I
2
C
0
_
S
C
L
/
U
A
R
T
1
_
R
X
D
P
0
.1
/
P
W
M
0
_
C
H
4
/
S
P
I0
_
M
IS
O
/
I
C
4
/
H
X
T
O
U
T
/
P
W
M
3
_
C
H
0
P
0
.0
/
P
W
M
0
_
C
H
3
/
S
P
I0
_
M
O
S
I
/
IC
3
/
U
A
R
T
1
_
R
X
D
/
T
1
/
H
X
T
IN
/
P
W
M
2
_
C
H
1
P
1
.0
/
P
W
M
0
_
C
H
2
/
S
P
I0
_
C
L
K
/
I
C
2
/
U
A
R
T
1
_
T
X
D
/
P
W
M
2
_
C
H
0
P
1
.1
/
A
D
C
_
C
H
7
/
C
L
K
O
/
I
C
1
/
P
W
M
0
_
C
H
1
/
U
A
R
T
3
_
R
X
D
/
P
W
M
1
_
C
H
1
Top transparent view
Figure 4.1-5 Pin Assignment of QFN20 Package
